diff --git a/hal/targets.json b/hal/targets.json
index 21c7382adae..7b567743a88 100644
--- a/hal/targets.json
+++ b/hal/targets.json
@@ -535,7 +535,14 @@
         "progen": {"target": "frdm-k64f"},
         "detect_code": ["0240"],
         "device_has": ["ANALOGIN", "ANALOGOUT", "ERROR_RED", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES", "STORAGE"],
-        "features": ["IPV4"]
+        "features": ["IPV4"],
+        "config": {
+            "storage_driver_mode": {
+                "help": "Configuration parameter to select flash storage driver mode. 1 => async operation, 0 => sync operation",
+                "macro_name": "STORAGE_DRIVER_CONFIG_HARDWARE_MTD_ASYNC_OPS",
+                "value": 1
+            }
+        }
     },
     "MTS_GAMBIT": {
         "inherits": ["Target"],
diff --git a/hal/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K64F/storage_driver.c b/hal/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K64F/storage_driver.c
index e98f14ee40b..79c757ed65f 100644
--- a/hal/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K64F/storage_driver.c
+++ b/hal/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K64F/storage_driver.c
@@ -212,10 +212,10 @@ static const ARM_STORAGE_CAPABILITIES caps = {
      *   1, drivers may still complete asynchronous operations synchronously as
      *   necessary--in which case they return a positive error code to indicate
      *   synchronous completion. */
-#ifndef YOTTA_CFG_CONFIG_HARDWARE_MTD_ASYNC_OPS
+#ifndef STORAGE_DRIVER_CONFIG_HARDWARE_MTD_ASYNC_OPS
     .asynchronous_ops = 1,
 #else
-    .asynchronous_ops = YOTTA_CFG_CONFIG_HARDWARE_MTD_ASYNC_OPS,
+    .asynchronous_ops = STORAGE_DRIVER_CONFIG_HARDWARE_MTD_ASYNC_OPS,
 #endif
 
     /* Enable chip-erase functionality if we own all of block-1. */